Over the past several decades, there has been rapid growth in research on the displacement measurement system for large structures. However, widely used sensors such as accelerometers, strain gauges, PZT, and GPS have...
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Over the past several decades, there has been rapid growth in research on the displacement measurement system for large structures. However, widely used sensors such as accelerometers, strain gauges, PZT, and GPS have disadvantages that they indirectly measure the displacement, are difficult to install, or costly to maintain. To solve the aforementioned problem, a paired structured light (SL) system was introduced in the previous study. Each module is composed of two screens facing with each other each with one or two lasers and a camera. Though the system can successfully estimate 6-DOF displacement, the measurable displacement range is limited due to the limited screen size. In this paper, therefore, a visually servoed paired SL system is proposed. The newly proposed system uses a visually servoed 2-DOF manipulator in order to make the projected laser beams are always on the screen. In other words, the laser pointer is controlled by a manipulator before it gets off. Various experiments were performed to validate the proposed system. The results show that the proposed system estimates 6-DOF displacement with high accuracy and with largely expanded measurement range. By cascading multiple modules, the proposed system can be applied to the massive structures such as long-span bridges or high-rise buildings.
In this paper we present a novel method for motion generation task specification for spherical mechanisms. This is accomplished with a new methodology for determining the optimal design sphere and the orientations on ...
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In this paper we present SPHINXCAM, a computer-aided manufacturing software for spherical four-bar mechanisms. The kinematics of spherical mechanisms are reviewed as they pertain to their manufacture. This is followed...
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Spatial 4C mechanisms are two degree of freedom kinematic closed-chains consisting of four rigid links simply connected in series by cylindrical(C) joints. In this work we are concerned with the design of spatial 4C m...
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This paper presents how a senior capstone project can be utilized to build partnerships between the academia and several companies representing key industries in modern robotics technology. The project can be describe...
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This paper presents how a senior capstone project can be utilized to build partnerships between the academia and several companies representing key industries in modern robotics technology. The project can be described as designing a portable robotic workcell for industry to showcase state-of-the-art equipment and technologies in robotics. The industrial sponsor for this project is Applied Manufacturing Technologies (AMT) located in Orion, Michigan. AMT plans to use the workcell for demonstrating current robotics technology in tradeshows, industrial open houses and/or robotics conferences. In addition, the workcell is to be used as a platform to provide training to engineers working in robotics industry on robot programming, machine vision and systems integration. The small size, flexible design and durability make the workcell appealing to many other applications in roboticsengineering. An engineering senior project design team composed of one computer engineer, two electrical engineers and two manufacturing engineering technologists at Lake Superior State University has worked on this project as their capstone design requirement through the 2007-2008 academic year. Lake Superior State University offers ABET accredited programs in computer, electrical and mechanical engineering as well as in manufacturing engineering technology. robotics and automation is a degree option in all majors. The capstone senior design project is an integral part of all the degree programs and provides a real-life experience for the engineering senior students. The two-semester course has been an important tool to introduce students to soft skills such as project management, communications, engineering economics, and engineering ethics. The paper illustrates how a capstone design project can be used to build partnerships in robotics technology. An educational partnership between Lake Superior State University and Applied Manufacturing Technologies has quickly expanded to include many oth
This paper proposes a method of reconstructing a scalar field by adaptively choosing sampling locations and using the measurements obtained from those locations to reconstruct an estimate of the underlying field using...
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Path planning of mobile robot has a purpose to design an optimal path from an initial position to a target point. Minimum driving time, minimum driving distance and minimum driving error might be considered in choosin...
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In this paper, tightly coupled system is designed using multi-GPS receivers based on the Extended Kalman Filter(EKF). Typically, GPS has the instantaneous error and INS has the disadvantage that the cumulative error o...
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This paper presents a pose synchronization method for semi-autonomous dynamic robotic swarms with a passivityshort human operator. In the human-robot network, a human operator sends a command signal to and receives vi...
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In this paper proposes a visual manipulation method that incorporates computation of 3D object position from characteristic disparity of stereo image. First, we proceed to an image revision work using the calibration....
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